Seeded-Growth of Silica Rods from Silica-Coated Particles

The seeded growth of silica rods from silica particles has previously been shown to result in isotropic star-shaped particles in which multiple rods are grown from the silica seed particles. 19 Using this synthesis as our starting point, we then optimized the conditions of silica rod growth in order to grow singular silica rods from pure silica ...

Rod-shaped mesoporous silica nanoparticles for nanomedicine…

Introduction: Interest in mesoporous silica nanoparticles for drug delivery has resulted in a good understanding of the impact of size and surface chemistry of these nanoparticles on their performance as drug carriers. Shape has emerged as an additional factor that can have a significant effect on delivery efficacy. Rod-shaped mesoporous silica …

Thermoresponsive polymer brush on monolithic-silica-rod …

The prepared monolithic silica-rod columns were also characterized by chromatographic analysis. PIPAAm-brush-modified monolithic silica-rod columns were able to separate hydrophobic steroids with a short analysis time (10 min), compared to PIPAAm-brush-modified silica-beads-packed columns, because of the horizontally limited …

Optical Fused Silica Rods End Face Polishing Square Quartz Rod

Optical Fused Silica End Face Polish Square Quartz Glass Rod High resistance to high intensity laser radiation, which also applies to the UV spectral range (e.g. excimer laser). High application temperature 1200 degrees C— …

Fabrication of nanoporous silica rods from curable …

Highlights. •. A novel technique—UV-curable nanocomposite technology (UV-CNCT)—is demonstrated for fabricating a nanoporous silica rod with a high doping …

SilicaROD A new challenge in fast high …

SilicaROD A new challenge in fast high-performance liquid chromatography separations. Kazuki Nakanishi. 1998, Trac. High performance liquid chromatography (HPLC) has become one of the most used methods for …

Shaping Silica Rods by Tuning Hydrolysis and Condensation of Silica

The mechanism behind the rod growth has been discussed in the literature by several authors. Zhang et al. initially proposed a form of templated growth. 38 They proposed that silica was deposited onto a rodlike PVP–water–gold aggregate. However, we showed by using cryo-transmission electron microscopy (TEM) that a droplet with a high …

Spectroscopic and lasing characteristics of an Yb-doped silica rod …

Using a high-quality Yb-doped silica (Yb:silica) rod with a diameter of 1.5 mm, we calculated the absorption and emission cross sections based on measurement of the absorption spectrum, resulting ...

Spectroscopic and lasing characteristics of an Yb-doped silica rod …

Using a high-quality Yb-doped silica (Yb:silica) rod with a diameter of 1.5 mm, we calculated the absorption and emission cross sections based on measurement of the absorption spectrum, resulting in a maximum absorption cross section of 3.84 × 10 -19 cm 2 at 978 nm and a maximum emission cross section of 4.23 × 10 -19 cm 2 at 980 nm.

Fabrication of nanoporous silica rods from curable

Rare-earth (RE) doped silica glass is essential for constructing high-power fiber lasers. However, the achievement of high doping concentrations with a uniform RE ion dispersion in the SiO 2 glass matrix is hindered by clustering and inhomogeneous distribution. Herein, a novel technique—UV-curable nanocomposite technology (UV …

SQ Fused Silica | WEINERT Industries AG

This quality grade is recommended for technical applications. Excimer-grade Fused Silica – available as SQ1 or SQ0: excellent transmission at 193 nm / 248 nm. Lowest level of laser-induced fluorescence (LIF) SQ0 …

High Purity Fused Silica Rods for Specialty Fibers

High Quality (HQ) Rods: Highest purity is key for low attenuation fibers. Therefore Heraeus Fluosil® HQ synthetic fused silica rods are the material of choice to achieve the highest …

Finite‐Sized One‐Dimensional Silica Microstructures (Rods…

In addition to various types of silica structures, a unique structure—silica rods—has been synthesized by employing the emulsion droplets made by adding water and citrate to polyvinylpyrrolidone pentanol solution. While significant progress has been made in modifying rod shape and chemistry, in rod assembly, and in rod applications, however ...

SQ Fused Silica | WEINERT Industries AG

SQ Fused Silica provided in various forms such as polished ingots or semi-finished items (including discs, rods, plates, blocks, etc.), available in five grades based on uniformity, striae absence, and suitable wavelength …

Fabrication of nanoporous silica rods from curable

A large-size (⌀5 mm × 90 mm) YAFP silica-core glass rod with low average RI difference of 2.6 × 10−4 (with respect to pure silica glass), and low radial and axial RI fluctuations of ~2 × 10 ...

Fabrication and packaging of whispering gallery mode rod …

The silica rod is mounted in a lathe (PROXXON, 24002), spinning the silica rod at rotation speeds of 300–900 RPM. After ablation, a crucial step in the fabrication of an ultra-high Q factor silica rod is curing the glass and smoothing the rod surface. The curing is obtained by heating the silica to a temperature greater than 1700 ̊C (and yet ...

Shaping Silica Rods by Tuning Hydrolysis and Condensation of Silica

We present the synthesis of colloidal silica particles with new shapes by manipulating the growth conditions of rods that are growing from polyvinylpyrrolidone-loaded water-rich droplets containing ammonia and ethanol. The silica rods grow by ammonia-catalyzed hydrolysis and condensation of tetraethoxysilane (TEOS). The lengthwise growth of …

Fused silica / quartz optical component : a complete guide

Fused Silica : transparent non-crystalline material made of pure Silica by deposition at high temperature. By extension is also used to cover Fused Quartz material. Fused Quartz : Pure Si02 material made by melting of crystalline quartz grains by electrical furnace or flame fusion. Quartz Glass & Silica Glass refers to respectively Fused Quartz ...

Thermoreversible Gels Composed of Colloidal Silica Rods …

To better understand the effects of particle shape anisotropy and attraction strength on gel and glass formation, we present a colloidal model system of octadecyl-coated silica rods, termed as adhesive hard rods (AHR), which enables control of rod aspect ratio and temperature-dependent interactions. The aspect ratios of silica rods …

Fused silica optical fibers with graded index nanostructured …

48 Citations. Metrics. The ability to shape the index profile of optical fibers holds the key to fully flexible engineering of their optical properties and future …

Colloidal Silica Rods: Material Properties and Fluorescent Labeling

Additionally, silica rods are made suitable for quantitative real-space studies by confocal microscopy. Several methods of fluorescent labeling to prepare rods with different fluorescent patterning, ranging from uniform fluorescence levels to gradients from one rod-end to the other, and even patterns of several colors are presented and …

Fused Silica

At Swift Glass, we specialize in fabricating high-quality fused silica parts for use in optical applications and more. Our fused silica products include industrial fused silica and UV Grade fused silica. Examples of the different fused silica varieties we offer include: CORNING® HPFS® 7980 Industrial Grade.

Silica Rod

China Silica Rod wholesale - Select 2024 high quality Silica Rod products in best price from certified Chinese Rod Set manufacturers, China Rod suppliers, wholesalers and factory on Made-in-China ... High Quality Custom Clear Transparent Fused Silica Stirring Quartz Glass Rod. US$ 0.1-100 / Piece. 1 Piece (MOQ) Nanyang Kylin Special …

SilicaROD™ — A new challenge in fast high-performance …

The quality of such a column, i.e. the separation performance, is mainly determined by the particle size, their size distribution and the quality of the packing of the particles [1]. In contrast to such conventional materials, in SilicaROD™ columns the packing consists of one rod of continuous monolithic porous silica ( Fig. 1 ).

Fabrication of nanoporous silica rods from curable …

DOI: 10.1016/j.jnoncrysol.2021.121236 Corpus ID: 244046217; Fabrication of nanoporous silica rods from curable nanocomposites and their application in Yb-doped fiber lasers @article{Zheng2022FabricationON, title={Fabrication of nanoporous silica rods from curable nanocomposites and their application in Yb-doped fiber lasers}, …

(PDF) Manipulating refractive index, homogeneity and

An optimized silica core glass rod with high Yb (0.77 wt.%) and fluorine (0.8 wt.%) doping concentration, low refractive index and acceptable optical quality was prepared.

Spectroscopic and lasing characteristics of an Yb-doped silica rod …

Using a high-quality Yb-doped silica (Yb:silica) rod with a diameter of 1.5 mm, we calculated the absorption and emission cross sections based on measurement of the absorption spectrum, resulting in a maximum absorption cross section of 3.84 × 10 −19 cm 2 at 978 nm and a maximum emission cross section of 4.23 × 10 −19 cm 2 at 980 nm. In ...

UV-grade Fused Silica light pipes

Common specifications. Material: UV grade fused silica (BK-7 glass and other materials are also available) Type: light pipes/optical rods. Diameter: 2 mm (+0/-0.03 mm) Length: 100 mm (+/- 1 mm) Surface quality: 60/40 scr/dig for lateral. surfaces and for both ends. End faces parallelism: 1 Arc Minute.

Fused silica optical fibers with graded index nanostructured core

The glass rods preparation: pure fused silica glass (SK1310) was formed into a glass rods of diameter of 0.45 mm. Ge-doped step-index preform (OptaCore) was also drawn into glass rods of the same ...

Fabrication and spectroscopic properties of Yb3+-doped silica …

Spectroscopic and laser properties of Al-P co-doped Yb silica fiber core-glass rod and large mode area fiber prepared by sol-gel method. Shikai Wang, Wenbin Xu, Fengguang Lou, Lei Zhang, Qinling Zhou, Danping Chen, Wei Chen, Suya Feng, Meng Wang, Chunlei Yu, and Lili Hu Opt. Mater. Express 6(1) 69-78 (2016)

Single-Mode-Multimode Silica Rod-Single-Mode High …

The 0.5-cm long multimode silica rod sensing element exhibits a sensitivity of up to 115.12 dBm/RIU for high-RI ranging between 1.450 and 1.531. The sensor also demonstrated its potential in power transformer application by distinguishing various ageing levels of transformer oil. The leaky modes mechanism in all-silica based structure is ...

Spectroscopic and lasing characteristics of an Yb-doped silica rod …

Using a high-quality Yb-doped silica (Yb:silica) rod with a diameter of 1.5 mm, we calculated the absorption and emission cross sections based on measurement of the absorption spectrum, resulting in a maximum absorption cross section of 3.84 × 10 −19 cm 2 at 978 nm and a maximum emission cross section of 4.23 × 10 −19 cm 2 at 980 …

Finite‐Sized One‐Dimensional Silica Microstructures …

silica rod field and will entice the broad research community to address the remaining challenges in this field. 2. Synthesis Though various strategies can be employed to synthesize the silica rods,[17-19] the main breakthrough in this field resulted after Zhang et al.[11] synthesized the rods using a PVP-pentanol emulsion droplet system.

Rod Lenses | Shanghai Optics

Rod Lenses from Shanghai Optics. Substrate options for our rod lenses include Schott glass, Ohara glass, CDGM, Corning Fused Silica, JGS1 and JGS2. We use the utmost care to ensure that each of our rod lenses fully meets all applicable standards, and our state of the art metrology equipment allows us to provide thorough quality control.

Seeded-Growth of Silica Rods from Silica-Coated Particles

Silica rods were grown via a modified procedure described by Datskos et al., which is a modification from the silica rod growth procedure originally described by Kuijk et al. First, a PVP/1-pentanol stock solution was made with concentration of 100 g/L. Then 9.11 g of this stock solution was added to a 15 mL centrifuge tube.

High quality factor measured in fused silica | Request PDF

Abstract. We have measured the mechanical dissipation in a sample of fused silica drawn into a rod. The sample was hung from a multiple-bob suspension, which isolated it from rubbing against its ...

Heraeus Conamic

High-quality Fused Quartz and Silica rods - ideal for demanding applications in the semiconductor manufacturing and for optical applications.

Monolithic silica rod columns for high-efficiency reversed …

The monolithic silica rod (3 mm diameter) was covered with a chemically inert first polymer layer, then embedded with a second polymeric material in a stainless-steel tube (8 mmOD, 2 mm thickness).The first polymer layer is compatible with organic solvents commonly employed for reversed-phase HPLC, including alcohols, acetonitrile, …

Seeded-Growth of Silica Rods from Silica-Coated Particles

Silica rods with high uniformity can be made via a one-pot wet-chemical synthesis method, are low-cost, inert, biocompatible, and highly tunable and already …

Shaping Silica Rods by Tuning Hydrolysis and Condensation of Silica

The silica rods grow by ammonia-catalyzed hydrolysis and condensation of tetraethoxysilane (TEOS). The lengthwise growth of these silica rods gives us the opportunity to change the conditions at any time during the reaction. In this work, we vary the availability of hydrolyzed monomers as a function of time and study how the change …